After Yi Bing said those words, he glanced at the still unconscious Tang Jiming in Feng Wu's arms. Seeing Feng Wu's reaction earlier, Yi Bing guessed that the flash of light just now has something to do with Tang Jiming. As for why he think like this, it is because that flash of light appeared only when Wang Jie mocked Tang Jiming with his taunting words. After that, the flash of light appeared, and then Wang Jie died.
Thus, Yi Bing thinks that it is Tang Jiming who caused that flash of light to appear. Not to mention that it was only them who reacted when the flash of light appeared while Tang Jiming remained just standing there with his head hung low. No one could see what his expression is, thus Yi Bing's suspicion of Tang Jiming increased.
